Window-sash lock



C. G. CALLAN May 22, 1923, 1,4553% WINDOW SASH LOCK Original Filed June5, 1920 Patented may 22, 1.9239

r eff.

CHARLES GEORGE GALLA1\T,'OF BENGOUGE, SASKATCHEWAN, CANADA!- WINDOW-SASHLOCK.

Application filed June 5, 1920. Serial No. 386,776. Renewed October 24,1922 Serial m. 596,684.

1 0 all whom it may concern:

Be it known that 1, CHARLES GEORGE CALLAN, a subject of the King ofGreat Britain, a resident of the town of Bengough, Province ofSaskatchewan, Dominion of Canada, have invented certain new and usefulImprovements in Window- Sash Locks, of which the following is aspecification.

This invention relates to improvements in window sash locks, and theobjects of the invention are to provide means whereby the sash may belocked in any elevated p051- tion, to permit of the device being mountedon window frames at present in use, to facilitate securing the lock inunlocked position so that the sash may be freely elevated and loweredwhen desired, to simplify the construction of the lock and cheapen thecost of manufacture, and generally to adapt the lock to better performthe functions required of it.

With the above and other objects in View, the invention consistsessentially of the imroved construction particularly described and setforth in the following specification and accompanying drawings formingpart of the same.

In the drawings:

Figure 1 is a fragmentary perspective view of a side member of a windowframe showing the improved sash lock mounted thereon.

Figure 2 is a vertical section through the side member of the windowframe, showing the sash lock in position, with the lock unlocked.

Figure 3 is a longitudinal section of the side member of the windowframe, showing the improved sash lock in locked position.

Figure 4 is a perspective view of the improved sash lock.

Figure 5 is a longitudinal section of the improved sash flock.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings; A represents the side member of a windowframe provided with a parting strip 10, and an inner strip 11, which isprovided intermediate of its length with a recess 12.

The lock B which forms the subject matten of the present invention issecured to the member A between the parting strip 10 and the inner strip11, and comprises a U-shaped member 13, the arms 14: and 15 of which areunequal length, and thisv U- shaped member is secured to the windowframe by screws or the like.

The arms 14 and 15 are provided with orifices 16 therein arranged inalignment, and a locking member 17 consisting of an angle shaped rod ofrectangular cross section has one arm journalled in the orifices 16. Theother arm of the locking member is provided with a sleeve 18 slidabletherer on and carrying a tongue 19, and this arm of the locking member17 and the tongue 19 embraces the arm 15 of the U-shaped member 13therebetween. I

The locking member 17 is thus held in a locked or unlocked position bymeans of the tongue 19 frictionally engaging with the arm 15.

When the device is in use and it is desired to maintain the window sashin an elevated position, then the sleeve 18 is slid longitudinally onthe outwardly disposed arm of the locking member 17 and in this way thetongue 19 is disengaged from the arm 15 of the U-shaped member 13.

The locking member 17 may now be rotated until the transverse arm isangularlydisposed, so that the upper edge of the arm will bite into thewindow sash and prevent it being lowered.

The lock is then locked by sliding the sleeve 18 longitudinally on theouter arm of the locking member 17, so that the tongue 19 willfrictionally bear upon the arm 15 of the U-shaped member 13.

This window lock is of an extremely simple nature and can be readilymounted on a Window at present in use and without the necessity ofdisassembling the window.

As many changes could be made in the above construction and many widelydifferent embodiments of my invention within the scope of the claims,constructed with out departing from the spirit or scope thereof, it isintended that all matter contained in the accompanying specification anddrawings shall be interpreted as illustrative and not in a limitingsense.

What I claim as my invention is:

1. A window lock comprising a U-shaped member designed to be secured toa window frame, the arms of the U-shaped member being outwardlydisposed, an angle shaped lockinginember pivota11y-,mounted in theU-shaped member, andmeans carried bythe locking member in the desiredposition, consists of a slidable sleeve provided with a 10 tongue whichfrictionally bears on one arm of the tJ-shaped member.

In w1tness= whereof I h-ave hereunto set m-y hand in the presence of twoWitnesses.

' Witnesses:

'ELMER J. KELLER, ARTHUR L. DOVE.

CHARLES GEORGE CALLAN.

